Spring-saddle.



C. A. PERSONS.

SPRING SADDLE.

APPLICATION FILED MAR. 10. ms.

mmm. Patented Dec. 5,1916.

R UZ 0 59 Y ill 1* ITED STARS ATET CHARLES A. PERSONS, OF WORCESTER,MASSACHUSETTS.

SPRING-SADDLE.

Application filed March 10, 1913.

like, and has for its object to provide a structure which is moresimple, eflicient and inexpensive than any that have heretofore beenconstructed.

The many features and advantages of the device will be fully understoodfrom the following detailed description and included in the claims.

Referring to the drawings :Figure 1 is a rear elevation of a saddle withthe invention complete thereon. Fig. 2, detail plan view of one of theresilient cantle supports shown in Fig. 1, as will be fully describedhereinafter. Fig. 3, a modified form of the invention, as will be fullydescribed hereinafter.

In Figs. 1 and 2 of the drawings, the device comprises a seat 10 mountedupon a main frame 11 composed of two trusses 12 and 13. These trussesare each connected to the cantle of the seat by resilient cantlesupports but as they are both exactly alike except that the parts arereversed, only one will be described in detail as the same will applyequally to the other support. This cantle support comprises an extensionspring lat suspended by its upper extremity from the rear extremity ofthe truss. To the lower extremity of this spring 14: is secured thelower extremity of the upright rod 15 which extends upwardly within thecoils of the spring and has its upper extremity secured to the underface of the cantle of the seat. Suspended also from the rear extremityof the truss is a second extension spring 16 which lies within the coilsof the first extension spring and also envelops the upright rod. At thelower extremity of the spring 16 is formed a loop or eyelet 17 whichenvelops the upright rod and is only of slightly greater diameter thanthe diameter of the rod and at an interval above this loop or eyelet isformed a fixed collar or Specification of Letters Patent.

Patented Dec. 5, 1916.

Serial no. 753,183.

shoulderlS of greater diameter than the diameter of the eyelet.

In operation, when the bicycle encounters an obstruction, the weight ofthe rider causes the extension spring 1 1 to be extended until the rodhas been depressed suiiiciently to cause the shoulder 18 to contact withthe loop or eyelet 17 when the spring 16 will also be extended and theresistive force of both springs will act jointly to support the load.Thus it is possible to make the extension spring 14; of

li ht wire which produces the easy riding action of such a wire springand when a shock too great to be withstood by the first spring isencountered, the second spring comes to its assistance with as great orgreater resistive power than would be produced by a single spring oflarge wire.

In Fig. 3 is shown a modified form of the invention in which instead ofthe collar or shoulder 18 of the embodiment shown in Fig. 1, a coilcompression spring 19 envelops the rod 20 and when this rod issufliciently depressed, this spring acts between the eyelet or loop 22at the lower extremity of the extension spring 23 and the shoulderformed by the bend in the upper portion of the rod so that thisextension spring is extended and the compression spring is compressed,thus producing a double bumper spring action.

The applicant is aware that a considerable number of changes in theconstruction and arrangement of parts can be made by any one skilled inthe art without departing from the scope of his invention and he doesnot care to be limited to the particular embodiment herein shown anddescribed.

What I claim as my invention and desire to secure by Letters Patentis 1. In a device of the class described, a seat, a supporting frametherefor, and resilient supports connecting said seat with said frameeach comprising an extension spring interposed between said seat andsaid frame to support said seat under normal conditions, and a secondextension spring adapted to coact with the first spring after said firstspring has been partially extended to support said seat under abnormalcon ditions.

2. In a device of the class described, a seat, a supporting frametherefor, and resilient supports connecting said seat with said frameeach comprising an extension spring interposed between said seat andsaid frame to support said seat under normal conditions, and a. secondextension spring enveloped by the coils of the first spring and normallyinactive but adapted to coact with the first spring after said firstspring has been partially extended to support said seat under abnormalconditions.

3. In a device of the class described, a seat, a supporting frametherefor, and resilient supports connecting said seat with said.frame'each comprising an extension spring suspended by its upperextremity from. said frame, an upright rod having its lower extremitysecured tothe lower extremity of said spring and its upper extremityconnected to said seat, adapted to support said seat under normalconditions, and a second extension spring likewise suspended from saidframe adapted to coact with the first extension spring after said firstspring vhas been partially extended. to support said seat under abnormalconditions.

4. In a device of the class described, a seat, a supporting frametherefor, and re- .silient supports, interposed between said seat andsaid frame each comprising, an extension springsuspended by its upperextremity from said frame, an upright rod connectving the lowerextremity of said spring with said seat, and a second extension springadapted to have its lower extremity engaged by a projection on said rodwhen this rod is sufliciently depressed and to then coact with the firstspring in supporting said seat while said rod is thus depressed.

5. In a device of the class described, a seat, a supporting frametherefor, and resilient supports interposed between said seat and saidframe each comprising, an extension spring suspended by its upperextremity from said frame, an upright rod connecting the lower extremityof said spring with the under side of the cantle portion of said seat,av second extension spring also suspended by its upper extremity fromsaid frame and extending downwardly within the coils of the firstspring, aneyelet upon the lower extremity of said second spring looselyenveloping said rod and free to slide thereon, and a projection on saidrod normally at an interval above said eyelet but adapted to coacttherewith when said rod is sufiiciently depressed to cause said secondspring to be extended and to act in conjunction with the first spring tosupport said seat.

In testimony whereof I aflix my signature in the presence of twowitnesses.

- CHARLES A. PE SONS Witnesses HARTLEY IV. BARTLETT, HANNAH M. KENNEDY.

Copies of this'patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0.

